*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    text-decoration: none;
}

.geju{
    width: 402px;
    margin: auto;
    margin-top: 150px;
    border: 1px solid #FF4400;
}
.nav{
    overflow: hidden;
}
.nav li{
    float: left;
    margin: 4px 20px 0px;
    padding:0px 4px 5px;
    border-bottom: 2px solid transparent;
    cursor: pointer;
}
.main{
    width: 100%;
    height: 70px;
    font-size: 12px;
    padding: 10px;
    position: relative;
    overflow: hidden;
}
.main>div{
    position: absolute;
    top:15px;
    left: 15px;
    display: none;
}
.main li{
    display: inline-block;
    width: 180px;
    margin-right: 10px;
    color: #3C3C3C;
    font-size:0.90em;
    white-space: nowrap;
    overflow: hidden;
}
.main .xian{
    display: block;
}
.nav .active{
    border-bottom-color:#F40 ;
    font-weight: 700;
}
.nav li:hover{
    color: #FF4400;
}
#F40
